﻿/********************************************************************************
** 作者： Mick
** 邮箱： zheng_jinfan@126.com
** 主页： http://www.zhengjinfan.cn
** 创始时间：2016-2-17
** 描述：
**      [辅助类]汉字操作辅助类
*********************************************************************************/
using System.Text;
using System.Text.RegularExpressions;
using BestEasyCMS.Framework.Extension;

namespace BestEasyCMS.Framework.Util
{
    /// <summary>
    /// [辅助类]汉字操作辅助类
    /// </summary>
    public sealed class SplitWordUtil
    {
        #region 构造实例

        /// <summary>
        /// 构造实例： 用C#实现汉字转化为拼音，实现的原理就是先将汉字转化成为内码，然后通过内码和拼音的对照来查找。　
        /// </summary>
        private SplitWordUtil()
        {
        }

        /// <summary>
        /// 构建类的实例对象
        /// </summary>
        public static SplitWordUtil Instance
        {
            get { return new SplitWordUtil(); }
        }

        #endregion

        ///　<summary>　
        ///将所有的汉字转换成为拼音（小写），实现的原理就是先将汉字转化成为内码，然后通过内码和拼音的对照来查找。　　　　　　　　
        ///　</summary>　
        private static Regex _myRegex = new Regex("^[一-龥]$"); //汉字的正则表达式.eg:　if(MyRegex.IsMatch(chrstr.ToStr()))

        private readonly string[] _pystr =
        {
            "a", "ai", "an", "ang", "ao", "ba", "bai", "ban", "bang", "bao", "bei"
            , "ben", "beng", "bi", "bian", "biao",
            "bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang", "cao",
            "ce", "ceng", "cha", "chai", "chan", "chang", "chao", "che", "chen",
            "cheng", "chi", "chong", "chou", "chu", "chuai", "chuan", "chuang",
            "chui", "chun", "chuo", "ci", "cong", "cou", "cu", "cuan", "cui",
            "cun", "cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di",
            "dian", "diao", "die", "ding", "diu", "dong", "dou", "du", "duan",
            "dui", "dun", "duo", "e", "en", "er", "fa", "fan", "fang", "fei",
            "fen", "feng", "fo", "fou", "fu", "ga", "gai", "gan", "gang", "gao",
            "ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua", "guai", "guan"
            , "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang",
            "hao", "he", "hei", "hen", "heng", "hong", "hou", "hu", "hua", "huai",
            "huan", "huang", "hui", "hun", "huo", "ji", "jia", "jian",
            "jiang", "jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan",
            "jue", "jun", "ka", "kai", "kan", "kang", "kao", "ke", "ken",
            "keng", "kong", "kou", "ku", "kua", "kuai", "kuan", "kuang", "kui",
            "kun", "kuo", "la", "lai", "lan", "lang", "lao", "le", "lei",
            "leng", "li", "lia", "lian", "liang", "liao", "lie", "lin", "ling",
            "liu", "long", "lou", "lu", "lv", "luan", "lue", "lun", "luo",
            "ma", "mai", "man", "mang", "mao", "me", "mei", "men", "meng", "mi",
            "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu",
            "na", "nai", "nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni",
            "nian", "niang", "niao", "nie", "nin", "ning", "niu", "nong",
            "nu", "nv", "nuan", "nue", "nuo", "o", "ou", "pa", "pai", "pan",
            "pang", "pao", "pei", "pen", "peng", "pi", "pian", "piao", "pie",
            "pin", "ping", "po", "pu", "qi", "qia", "qian", "qiang", "qiao", "qie"
            , "qin", "qing", "qiong", "qiu", "qu", "quan", "que", "qun",
            "ran", "rang", "rao", "re", "ren", "reng", "ri", "rong", "rou", "ru",
            "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang",
            "sao", "se", "sen", "seng", "sha", "shai", "shan", "shang", "shao",
            "she", "shen", "sheng", "shi", "shou", "shu", "shua",
            "shuai", "shuan", "shuang", "shui", "shun", "shuo", "si", "song",
            "sou", "su", "suan", "sui", "sun", "suo", "ta", "tai",
            "tan", "tang", "tao", "te", "teng", "ti", "tian", "tiao", "tie",
            "ting", "tong", "tou", "tu", "tuan", "tui", "tun", "tuo",
            "wa", "wai", "wan", "wang", "wei", "wen", "weng", "wo", "wu", "xi",
            "xia", "xian", "xiang", "xiao", "xie", "xin", "xing",
            "xiong", "xiu", "xu", "xuan", "xue", "xun", "ya", "yan", "yang", "yao"
            , "ye", "yi", "yin", "ying", "yo", "yong", "you",
            "yu", "yuan", "yue", "yun", "za", "zai", "zan", "zang", "zao", "ze",
            "zei", "zen", "zeng", "zha", "zhai", "zhan", "zhang",
            "zhao", "zhe", "zhen", "zheng", "zhi", "zhong", "zhou", "zhu", "zhua",
            "zhuai", "zhuan", "zhuang", "zhui", "zhun", "zhuo",
            "zi", "zong", "zou", "zu", "zuan", "zui", "zun", "zuo"
        };

        private readonly int[] _pyvalue =
        {
            -20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257, -20242,
            -20230, -20051, -20036, -20032, -20026,
            -20002, -19990, -19986, -19982, -19976, -19805, -19784, -19775, -19774,
            -19763, -19756, -19751, -19746, -19741, -19739, -19728,
            -19725, -19715, -19540, -19531, -19525, -19515, -19500, -19484, -19479,
            -19467, -19289, -19288, -19281, -19275, -19270, -19263,
            -19261, -19249, -19243, -19242, -19238, -19235, -19227, -19224, -19218,
            -19212, -19038, -19023, -19018, -19006, -19003, -18996,
            -18977, -18961, -18952, -18783, -18774, -18773, -18763, -18756, -18741,
            -18735, -18731, -18722, -18710, -18697, -18696, -18526,
            -18518, -18501, -18490, -18478, -18463, -18448, -18447, -18446, -18239,
            -18237, -18231, -18220, -18211, -18201, -18184, -18183,
            -18181, -18012, -17997, -17988, -17970, -17964, -17961, -17950, -17947,
            -17931, -17928, -17922, -17759, -17752, -17733, -17730,
            -17721, -17703, -17701, -17697, -17692, -17683, -17676, -17496, -17487,
            -17482, -17468, -17454, -17433, -17427, -17417, -17202,
            -17185, -16983, -16970, -16942, -16915, -16733, -16708, -16706, -16689,
            -16664, -16657, -16647, -16474, -16470, -16465, -16459,
            -16452, -16448, -16433, -16429, -16427, -16423, -16419, -16412, -16407,
            -16403, -16401, -16393, -16220, -16216, -16212, -16205,
            -16202, -16187, -16180, -16171, -16169, -16158, -16155, -15959, -15958,
            -15944, -15933, -15920, -15915, -15903, -15889, -15878,
            -15707, -15701, -15681, -15667, -15661, -15659, -15652, -15640, -15631,
            -15625, -15454, -15448, -15436, -15435, -15419, -15416,
            -15408, -15394, -15385, -15377, -15375, -15369, -15363, -15362, -15183,
            -15180, -15165, -15158, -15153, -15150, -15149, -15144,
            -15143, -15141, -15140, -15139, -15128, -15121, -15119, -15117, -15110,
            -15109, -14941, -14937, -14933, -14930, -14929, -14928,
            -14926, -14922, -14921, -14914, -14908, -14902, -14894, -14889, -14882,
            -14873, -14871, -14857, -14678, -14674, -14670, -14668,
            -14663, -14654, -14645, -14630, -14594, -14429, -14407, -14399, -14384,
            -14379, -14368, -14355, -14353, -14345, -14170, -14159,
            -14151, -14149, -14145, -14140, -14137, -14135, -14125, -14123, -14122,
            -14112, -14109, -14099, -14097, -14094, -14092, -14090,
            -14087, -14083, -13917, -13914, -13910, -13907, -13906, -13905, -13896,
            -13894, -13878, -13870, -13859, -13847, -13831, -13658,
            -13611, -13601, -13406, -13404, -13400, -13398, -13395, -13391, -13387,
            -13383, -13367, -13359, -13356, -13343, -13340, -13329,
            -13326, -13318, -13147, -13138, -13120, -13107, -13096, -13095, -13091,
            -13076, -13068, -13063, -13060, -12888, -12875, -12871,
            -12860, -12858, -12852, -12849, -12838, -12831, -12829, -12812, -12802,
            -12607, -12597, -12594, -12585, -12556, -12359, -12346,
            -12320, -12300, -12120, -12099, -12089, -12074, -12067, -12058, -12039,
            -11867, -11861, -11847, -11831, -11798, -11781, -11604,
            -11589, -11536, -11358, -11340, -11339, -11324, -11303, -11097, -11077,
            -11067, -11055, -11052, -11045, -11041, -11038, -11024,
            -11020, -11019, -11018, -11014, -10838, -10832, -10815, -10800, -10790,
            -10780, -10764, -10587, -10544, -10533, -10519, -10331,
            -10329, -10328, -10322, -10315, -10309, -10307, -10296, -10281, -10274,
            -10270, -10262, -10260, -10256, -10254
        };

        ///　<summary>
        ///　转化汉字的全部拼音
        ///　</summary>
        ///　<param　name="chrstr">汉字</param>
        ///　<returns>汉字拼音</returns>
        public string ConvertAllSpell(string chrstr)
        {
            var myRegex = new Regex("^[一-龥]$");
            var returnstr = "";
            var nowchar = chrstr.ToCharArray();
            foreach (var t in nowchar)
            {
                if (myRegex.IsMatch(t.ToStr()))
                {
                    var array = Encoding.Default.GetBytes(t.ToStr());
                    int i1 = (array[0]);
                    int i2 = (array[1]);
                    var chrasc = i1*256 + i2 - 65536;
                    if (chrasc > 0 && chrasc < 160)
                    {
                        returnstr += t;
                    }
                    else
                    {
                        for (var i = (_pyvalue.Length - 1); i >= 0; i--)
                        {
                            if (_pyvalue[i] <= chrasc)
                            {
                                returnstr += _pystr[i];
                                break;
                            }
                        }
                    }
                }
                else
                {
                    returnstr += t.ToStr();
                }
            }
            return returnstr;
        }

        ///　<summary>
        ///　只转换每个汉字首字母（大写）
        ///　</summary>
        ///　<param　name="strText"></param>
        ///　<returns></returns>
        public string GetChineseSpell(string strText)
        {
            var len = strText.Length;
            var myStr = "";
            for (var i = 0; i < len; i++)
            {
                myStr += GetSpell(strText.Substring(i, 1));
            }
            return myStr;
        }

        ///　<summary>
        ///　获得第一个汉字的首字母（大写）
        ///　</summary>
        ///　<param　name="cnChar"></param>
        ///　<returns></returns>
        public string GetSpell(string cnChar)
        {
            var arrCn = Encoding.Default.GetBytes(cnChar);
            if (arrCn.Length > 1)
            {
                int area = arrCn[0];
                int pos = arrCn[1];
                var code = (area << 8) + pos;
                int[] areacode =
                    {
                        45217, 45253, 45761, 46318, 46826, 47010, 47297, 47614, 48119, 48119, 49062, 49324,
                        49896, 50371, 50614, 50622, 50906, 51387, 51446, 52218, 52698, 52698, 52698, 52980,
                        53689, 54481
                    };
                for (var i = 0; i < 26; i++)
                {
                    var max = 55290;
                    if (i != 25) max = areacode[i + 1];
                    if (areacode[i] <= code && code < max)
                    {
                        return Encoding.Default.GetString(new[] {(byte) (65 + i)});
                    }
                }
                return "*";
            }
            return cnChar;
        }
    }
}